Insecticide



" l o Drawing.

Patented Nov. '10, 1 931 "UNITED STATES PATENT; o Fics IBIDEBICK W. SULLIVAN, 33., AND ma W. ADAMS, 0!.WfiI'I-ING, INDIANA, AS-

BIGNOBS T0 STANDARD OIL COMPANY, OF WRITING, A. CORPORATION 01 Immune This invention relates to improvements insecticides and more particularly to insect1- cides suitable for the treatment of trees and acids derived from the treatment of petroleum oils with sulfuric acid, a suitable colloidal emulsifying agent and water. The quantities of these substances is preferably such as to give a thick emulsion which may be diluted with water before using to give ,an

emulsion suitable for spraying. If desired,

the emulsion may also comprise a suitable stomach-poison.

The/mineral oil employed is preferably a more or less refined oil suitably of viscosity between 50 and 200 seconds Saybolt at 100 F. For example, the so-called white oils of viscosities of about 60 and 80 are eminently suitable for this purpose. As alkali compounds of sulfonic acids derived from the treatment of petroleum oils with strong sulfuric acid may be mentioned the preferentially oil soluble sulfonates of the alkali metals derived from mineral oil in the manner described in Hum hreys U. S. Patent No. 1,286.179 granted November 26. 1918, or in any other suitable manner. or the potassium or sodium compounds of the preferentially water-soluble sulfonic acids, derived from mineral oils in the manner described in U. S. Patent No. 1,474,933 granted November 20, 1923 to Humphreys and others, or in any other suitable manner. The preferred c'olloidal emulsifying agent is glue, although gelatine, albumen, caseinates, gums such asvlead arsenate, although any other suitable poison such as Paris green, calclum or maginsnc'rrcmn Application mm, 15, 1920. semi a. 122,744.

nesium arsenates, fluorides or fluorosilicates may be substituted therefor.

The thick emulsion may suitably contain between 45 and of themineral oil, be-

tween l/ and 5% of the alkali sulfonates, be-

tween ,4; and 5% of the emulsifying agent and between 5 and 50% of water. It is to be understood that the invention is not limited to these .specific proportions pr. to these amounts of water because before use, the thick Y emulsion is considerably diluted with water and it is obvious that the initial emulsion may be pre ared with a greater or less degree of dilutlon, if desired. Where a stomach poison is used, it may amount to between 5 and 20% of the thick emulsion.

The invention will be more readily understood from the following specific examples.

The coni osition ma be very readily emulsified or t inned wit water; for exam le passage through a rotary pump is usua y suflicient for t e production of a very stable emulsion.

For use asa spray, the thick emulsion is diluted with between about 10 and volumes of water, a good distribution being obtained with slight stirring. It is preferred to dilute the thick emulsion with about thirty to fifty volumes of water, which gives an emulsion of approximately 2% oil'content. I

We claim:

1. An emulsion producing composition effective as an insecticide for plants and trees, comprising a mineral oil, an alkali-metal compound of sulfonic acids derived from mineral oil, a colloidal emulsifying agent,

and water.

2. An emulsion producing composition effective as an insecticide for plants and trees,

comprising a mineral oil, alkali-metal compound of preferentially oil soluble sulfonates, a colloidal emulsifyin agent, and water.

3. An emulsion pro ucing composition ef- 5 fective as an insecticide for plants and trees, comprising a mineral oil an alkali-metal compound of sulfonic acid derived from mineral oil, glue, and water.

4. An emulsion producing composition effective as an insecticide for lants and trees,

comprising a mineral oil, a kali-metal compound of preferentially oil soluble sulneonates, glue, and water.

5. An emulsion producing composition efw fective as an insecticide for plants and trees, comprising a mineral oil, an alkali metal compound of sulfonic acid derived from mineral oil, a colloidal emulsifying agent, a stomach-poison and water. so 6. An emulsion producing composition effective 'as'an insecticide for lants and trees, comprising a mineral oil, a ali-metal compound of preferentially oil-soluble sulfonates, glue, lead arsenate, and water. 7. An emulsionproducing composition effective as an insecticide for plants and trees. compzising between and 90% of mineral oil, tween and 5% of alkali sulfona es,

between and 5% of emulsifying agent, at and between 5 and %of water.

8. An emulsion producing composition effective as an insecticide for plants and trees comprising between 45 and of minera oil, between and 5% of alkali sulfonates,

35 between 5!; and 5% of emulsifying agent, 4 between 5 and 20% stomach poison and between 5 and 50% of water. 7

FREDERICK W. SULLIVAN, JR. ELMER W. ADAMS. 

